Case IH FARMALL 110U, Service Manual

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Engine - Engine and crankcase
Engine - Troubleshooting
Problem Possible Cause Correction
Engine does not develop
full power
Clogged air cleaner Inspect and replace air cleaner if necessary
Fuel line obstructed Check for crimped fuel line. Inspect fuel
lifter for cleanliness
Improper injection timing Repair/replace components as required
Improper nozzle injection pressure and an-
gle Check injection timing, inspect for proper
injection pressure and angle
Low cylinder compression Check engine compression
Insufficient fuel injection Repair at authorized shop
Improper valve lash adjustment Adjust valves to correct tolerances
Burned, worn or sticking valves Inspect and replace as necessary
Blown head gasket Replace head gasket
Worn or sticking piston rings Overhaul as necessary
Faulty engine stop solenoid Replace stop solenoid
Low oil pressure Engine oil level low Fill to proper level
Wrong grade of oil Replace with correct grade oil
Clogged oil pump filter Change oil and filter
Faulty oil pressure relief valve Replace relief valve
Worn oil pump drive shaft gears, or broken
oil pipe Inspect oil system and components. Re-
place defective components
Excessive main or connecting rod bearing
clearances Replace bearings or shaft if necessary
Oil pump axial clearance not properly set Check pump clearance and shim as
needed to proper tolerance.
Engine will not stop Faulty engine stop solenoid Replace the stop solenoid
Faulty starter switch Replace starter switch
Low cylinder
compression Burned, worn or sticking valves Replace valves
Bent valve stem Replace valves
Broken or weak valve spring Replace valve spring
Blown cylinder head gasket Replace head gasket
Worn or sticking piston rings Replace piston rings
Scored piston Replace piston
Poor engine idling Improper injection timing Correct the injection timing
Air in injection pump Purge air from the system
Improper governor adjustment Adjust the governor
Oil pressure warning light
fails to operate
Bulb burnt out Replace the bulb
Oil pressure sensor is faulty Replace oil pressure sensor
Warning light circuit faulty Replace warning light circuit
Engine knocks Diluted or thin oil Change engine oil and filter
Insufficient oil supply Check engine oil level
Low oil pressure
Inspect lube system for restrictions
Worn crankshaft thrust bearing Replace thrust bearing
Excessive flywheel runout Replace flywheel
Excessive connecting rod or main bearing
clearance Replace bearings
Seized bearing Replace bearing and affected component if
necessary
Clogged oil passage Clean out oil passages
Bent or twisted connecting rod Replace connecting rod
Crankshaft journals out of round Rework or replace crankshaft
Excessive piston to cylinder bore clearance Replace piston with correct oversized pis-
ton
Excessive piston ring side clearance Replace piston rings
Broken or damaged ring Replace piston ring
Excessive piston pin clearance Replace piston pin or bushing
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